PAY TO PLAY is an unlockable challenge in The Binding of Isaac, added in the Afterbirth DLC.

This page shows the latest information as of the new Repentance+ (Online Co-op) DLC.
To see information about this challenge for the previous Repentance version, check this page instead.

Sack of Pennies
Money = Power

Note: this list does not include characters' default starting items.

+50¢.
Every door is an Arcade door that requires 1¢ to open.
Taking damage causes Isaac to lose money as if attacked by Greed.
Having 0¢ will kill Isaac.

Based on the rules set in the .xml file, the following special rooms are disabled during this challenge:

The following is unlocked for completing the PAY TO PLAY challenge: Percs! + Addicted!

Defeat Isaac as Cain.

• Check out the challenge description on the external Isaac Wiki.